Okla. Stat. tit. 70, § 70-23-108: The Authority has power to condemn property

Whenever a reasonable price cannot be agreed upon, or whenever

the owner is legally incapacitated, or is absent, unknown, or unable

to convey valid title, the Authority is hereby authorized and

empowered to acquire by condemnation proceedings in the same manner

as land is condemned for railroad purposes any land, property,

rights, rights-of-way, franchises, easements, or other property

deemed necessary or convenient for the construction or the efficient

operation of any facilities, or necessary in the restoration of

public or private property damaged or destroyed. No act or

obligation of the Authority shall impose any liability upon the

state or the Authority except such as may be paid from the funds

provided under the authority of the article.